空腹运动，并不是适合所有人的运动

Core Viewpoint - Fasting exercise is gaining popularity among fitness enthusiasts as a method to burn fat, but its effectiveness and suitability vary among individuals [1][6]. Group 1: Benefits of Fasting Exercise - Many believe that exercising in a fasted state accelerates fat burning due to depleted glycogen stores, allowing the body to utilize more fat during workouts [2][9]. - A study published in 2016 confirmed that fasting exercisers had a significantly higher fat oxidation rate compared to those who exercised after eating, particularly during low-intensity aerobic activities [10][11]. - Fasting exercise can enhance the body's adaptability to hunger, which may be beneficial for weight loss over the long term [18][19]. Group 2: Limitations and Risks of Fasting Exercise - Fasting exercise may lead to low blood sugar, negatively impacting performance and potentially causing dizziness or fainting, especially in individuals with pre-existing conditions like low blood sugar [3][5][29]. - For muscle gain, fasting exercise may result in lower muscle mass increase and slower muscle dimension growth compared to those who eat normally [23][24]. - High-intensity workouts in a fasted state can lead to decreased performance and recovery issues due to insufficient glycogen [12][25]. Group 3: Recommendations for Fasting Exercise - Fasting exercise should be approached gradually, with individuals needing to adapt their bodies to this practice over time [31][33]. - It is advisable to focus on low-intensity aerobic exercises during fasting to avoid adverse effects like dizziness [37]. - Maintaining hydration and electrolyte balance is crucial during fasting workouts, with options like coconut water being beneficial [38].